AbletonMCP

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries the full burden of behavioral disclosure. It states this is an 'Add' operation (implying mutation) but doesn't describe what happens to existing notes, whether the operation is destructive, what permissions are needed, or what the response looks like. The description is minimal and lacks crucial behavioral context for a mutation tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, efficient sentence with zero wasted words. It's appropriately sized for such a simple statement and front-loads the core action clearly.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a mutation tool with 3 parameters, 0% schema coverage, no annotations, and no output schema, the description is inadequate. It doesn't compensate for the lack of structured information about behavior, parameters, or return values, leaving significant gaps for an agent to understand how to use this tool correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, so all 3 parameters are undocumented in the schema. The description mentions 'notes' but doesn't explain the 'track_index' or 'clip_index' parameters or provide any details about the structure or format of the 'notes' array. It adds minimal semantic value beyond the parameter names themselves.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action ('Add MIDI notes') and target resource ('to a clip'), making the purpose immediately understandable. It doesn't specifically differentiate from siblings like 'create_clip_tool' or 'stop_clip_tool', but the verb+resource combination is sufficiently distinct.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives. It doesn't mention prerequisites (e.g., needing an existing clip), exclusions, or relationships with sibling tools like 'create_clip_tool' or 'fire_clip_tool'.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.